Until 1 January 2007 Sydlangeland Municipality was a municipality in the former Funen County, on the southern parts of the island of Langeland. It also included the inhabited islands of Lindø and Langø, as well as a number of smaller uninhabited islands. The municipality covered an area of 120.82 km2, and had a total population of 4,034 (2006). Its last mayor was Knud Gether, a member of a local political party.

Until January 1, 2007 Rudkøbing Municipality was a municipality in the former Funen County, on the central parts of the island of Langeland. It also included the islands of Strynø, Strynø Kalv and a number of small uninhabited islands. The municipality covered an area of 62.94 km2, and had a total population of 6,647 (2006). Its last mayor was Johan Norden, a member of the Social Democrats political party.